length 3 4 copper disc rivets

{"cid":"91182431","title":"Roof Slates Copper Disc Rivets 100 Pcs Package 20mm Length 18mm Round Base","imgUrl":"https:\/\/img.chinax.com\/nimg\/a1\/0e\/be45d3fa49f0234e8a28f1be8b8a-200x200-1.jpg","attrs":{"Brand Name":"huihaocustom","Model Number":"hh-co-20","Minimum Order Quantity":"50000 pcs","Delivery Time":"7 work days","Certification":"iso","Place of Origin":"China","Payment Terms":"L\/C, T\/T","Supply Ability":"400000 pcs per month","Packaging Details":"100 pcs per bag, 20 bags per carton","name":"copper disc rivets","usage":"Roof Slates","base type":"round disc","base size":"18mm","pin diameter":"1.5mm","pin length":"20mm","material":"copper","factory":"he bei xiangyi"}}